Bryce Thornton
2006-Mar-11 20:58 UTC
[Rails] How do you display validation errors when validating child models?
I can''t seem to figure out how to get child validation error messages to display. I''m going through the simple blog example DHH uses in his video. In the example, a comment belongs_to a post. Validating posts works fine and the errors are displayed as they should be. When I try to validate a comment using: validates_presence_of :summary It does the proper validation by not inserting the comment, but the validation error message isn''t displayed when the controller redirects_to the ''show'' action. So, any ideas about how to get these child validations to display properly in the parent''s view? Thanks, Bryce
ChrisT
2006-Mar-17 11:43 UTC
[Rails] How do you display validation errors when validating child models?
Did you ever get this sorted? I am struggling with a similar situation, and feeling particularly brain-dead at the moment. Chris T Bryce Thornton wrote:> I can''t seem to figure out how to get child validation error messages > to display. I''m going through the simple blog example DHH uses in his > video. In the example, a comment belongs_to a post. Validating posts > works fine and the errors are displayed as they should be. When I try > to validate a comment using: > > validates_presence_of :summary > > It does the proper validation by not inserting the comment, but the > validation error message isn''t displayed when the controller > redirects_to the ''show'' action. So, any ideas about how to get these > child validations to display properly in the parent''s view? > > Thanks, > Bryce > _______________________________________________ > Rails mailing list > Rails@lists.rubyonrails.org > http://lists.rubyonrails.org/mailman/listinfo/rails > >
Chris T
2006-Mar-17 14:20 UTC
[Rails] Re: How do you display validation errors when validating chi
Bryce Thornton wrote:> I can''t seem to figure out how to get child validation error messages > to display. I''m going through the simple blog example DHH uses in his > video. In the example, a comment belongs_to a post. Validating posts > works fine and the errors are displayed as they should be. When I try > to validate a comment using: > > validates_presence_of :summary > > > Thanks, > BryceOK, with the help of an another thread got this sorted, so if you''re still struggling this is how I did it (though there''s prob better ways). The problem (I think) is that I was svaing the parent-child relationship and with it the child. The child failed the validation but (and here I''m guessing) the error message was lost by the parent.save method. So I simply encased the parent.child save with an if child.valid? statement. Which threw me back to the form with the error messages and fields as before. Except...[and I''m sure I saw the solution to this somewhere but can''t for the life of me find it now] the parent.id that was originally in the URL when the form was first visited (from a link: create a new child for this item), and was submitted with the other form items as a hidden field, is no longer there, and I can''t for the life of me think of an elegant way of keepiong in the form. Any ideas? Chris T -- Posted via http://www.ruby-forum.com/.